<template>
  <div>
    <!-- 顶部滑动条区域 -->
    <div id="slider" class="mui-slider">
        <div
        class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted"
        >
            <div class="mui-scroll">
                <a
                :class="['mui-control-item',item.id == 0 ? 'mui-active' : '']"
                v-for="item in cates"
                :key="item.id"
                @click="getPhotoListByCateId(item.id)"
                >{{item.title}}</a>
            </div>
        </div>
    </div>
    <!-- 图片列表 -->
    <div>
      <ul class="ptoto-list">
        <router-link :to="'/home/photoinfo/' + item.id" v-for="item in list" :key="item.id" tag="li">
            <img v-lazy="item.img_url" />
            <div class="info">
                <h1 class="info-title">{{item.title}}</h1>
                <div class="info-body">{{item.zhaiyao}}</div>
            </div>
        </router-link>
      </ul>
    </div>
  </div>
</template>

<script>
import mui from "../../lib/mui/js/mui.js";
export default {
  data() {
    return {
      cates: [],
      list: []
    };
  },
  created() {
    this.getAllCategory();
    this.getPhotoListByCateId(0);
  },
  mounted() {
    mui(".mui-scroll-wrapper").scroll({
      deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
    });
  },
  methods: {
    getAllCategory() {
      //获取所有图片分类
      this.$http.get("api/getimgcategory").then(result => {
        if (result.body.status == 0) {
          // result.body.message.unshift({ title: "全部", id: 0 });
          // this.cates = result.body.message;
          result.body.message.unshift({ title: "全部", id: 0 });
          this.cates = result.body.message;
        }
      });
    },
    getPhotoListByCateId(cateId) {
      this.$http.get("api/getimages/" + cateId).then(result => {
        if (result.body.status == 0) {
          this.list = result.body.message;
        }
      });
    }
  }
};
</script>

<style lang="scss" scope>
* {
  touch-action: pan-y;
}
//
.ptoto-list {
  margin: 0;
  padding: 10px;
  list-style: none;
  padding-bottom: 0;
  li {
    background: #ccc;
    text-align: center;
    margin-bottom: 10px;
    box-shadow: 0 0 9px #999;
    position: relative;
    img {
      width: 100%;
      height: 100%;
      vertical-align: middle;
    }
    img[lazy="loading"] {
      width: 40px;
      height: 300px;
      margin: auto;
    }
    .info {
      color: #fff;
      text-align: left;
      position: absolute;
      bottom: 0;
      left: 0;
      background: rgba(0, 0, 0, 0.4);
      max-height: 84px;
      overflow: hidden;
    }
    .info-title {
      font-size: 14px;
    }
    .info-body {
      font-size: 13px;
    }
  }
}
</style>